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Dr. Ryotaro Nakamura, MD

Accepting New Patients

(2 Ratings)

Specializes in: Adult Oncology and Adult Hematology

1500 E DUARTE ROAD
DUARTE, CA 91010

1-800-826-4673

Dr. Ryotaro Nakamura, MD is an oncologist in DUARTE, CA specializing in adult oncology and adult hematology. Dr. Ryotaro Nakamura, MD is affiliated with City of Hope.

Office Locations

1500 E DUARTE ROAD
DUARTE, CA 91010

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In The News

“In this exclusive MedPage Today video, Ryotaro Nakamura, MD, of the City of Hope Comprehensive Cancer Center in Duarte, California, reviews the current and emerging strategies in GVHD prevention.”—"Advances in the Prevention of GVHD", MedPage Today, July 2022

“"This is good news," Ryotaro Nakamura, MD, co-director of the Center for Stem Cell Transplantation at City of Hope in Duarte, California, told MedPage Today.”—"Gains in Stem Cell Transplant Mortality Over Last 25 Years", MedPage Today, January 2020

Noteworthy Medicare Patient Procedures Performed by Dr. Ryotaro Nakamura, MD in 2024

Click on any procedure below to see further details on volume and pricing among Medicare patients.

Top 25%

By Volume:

inpatient hospital care

In 2012, Dr. Ryotaro Nakamura, MD performed more inpatient hospital care (for patient admitted to hospital) procedures for Medicare patients than 75% of providers in related specialties within California.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Ryotaro Nakamura, MD treated as an oncologist in DUARTE, CA during 2012 were hospital care and inpatient care.

Volume of procedures performed by Dr. Ryotaro Nakamura, MD for Medicare patients.

doctor visit	523
hospital care	281
inpatient care	281

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Ryotaro Nakamura, MD treated as an oncologist in DUARTE, CA during 2013 were hospital care and inpatient care.

Volume of procedures performed by Dr. Ryotaro Nakamura, MD for Medicare patients.

doctor visit	475
hospital care	431
inpatient care	431

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryotaro Nakamura, MD.

**Gender**
Male	98
Female	63

**Ethnicity**
Non-Hispanic White	87
Black	0
Hispanic	35
Asian	24
Other	0
Native American	0

**Age**
From 65 to 74	81
From 75 to 84	0
85 and over	0
Less than 65	51

Conditions of Medicare patients treated by Dr. Ryotaro Nakamura, MD in 2013

Hypertension	67
High Cholesterol	53
Stroke	7
Ischemic Heart Disease	45
Depression	22
Chronic Kidney Disease	33
Asthma	9
Osteoperosis	14
Atrial Fibrilation	0
Heart Failure	19
Chronic Obstructive Pulmonary Disease	17
Diabetes	38
Dementia	0
Cancer	12

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Ryotaro Nakamura, MD treated as an oncologist in DUARTE, CA during 2014 were hospital care and inpatient care.

Volume of procedures performed by Dr. Ryotaro Nakamura, MD for Medicare patients.

doctor visit	382
hospital care	294
inpatient care	294

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryotaro Nakamura, MD.

**Gender**
Male	81
Female	56

**Ethnicity**
Non-Hispanic White	74
Black	0
Hispanic	32
Asian	18
Other	0
Native American	0

**Age**
From 65 to 74	69
From 75 to 84	0
85 and over	0
Less than 65	42

Conditions of Medicare patients treated by Dr. Ryotaro Nakamura, MD in 2014

Hypertension	67
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	36
Depression	23
Chronic Kidney Disease	30
Asthma	12
Osteoperosis	11
Atrial Fibrilation	12
Heart Failure	23
Chronic Obstructive Pulmonary Disease	18
Diabetes	38
Dementia	0
Cancer	11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Ryotaro Nakamura, MD treated as an oncologist in DUARTE, CA during 2015 were hospital care and inpatient care.

Volume of procedures performed by Dr. Ryotaro Nakamura, MD for Medicare patients.

doctor visit	329
hospital care	350
inpatient care	350

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryotaro Nakamura, MD.

**Gender**
Male	160
Female	152

**Ethnicity**
Non-Hispanic White	188
Black	0
Hispanic	68
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	170
From 75 to 84	66
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ryotaro Nakamura, MD in 2015

Hypertension	67
High Cholesterol	63
Stroke	9
Ischemic Heart Disease	51
Depression	29
Chronic Kidney Disease	40
Asthma	12
Osteoperosis	15
Atrial Fibrilation	13
Heart Failure	26
Chronic Obstructive Pulmonary Disease	15
Diabetes	38
Dementia	8
Cancer	11

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Ryotaro Nakamura, MD treated as an oncologist in DUARTE, CA during 2016 were hospital care and inpatient care.

Volume of procedures performed by Dr. Ryotaro Nakamura, MD for Medicare patients.

doctor visit	378
hospital care	414
inpatient care	414

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryotaro Nakamura, MD.

**Gender**
Male	91
Female	69

**Ethnicity**
Non-Hispanic White	94
Black	0
Hispanic	33
Asian	21
Other	0
Native American	0

**Age**
From 65 to 74	87
From 75 to 84	35
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ryotaro Nakamura, MD in 2016

Hypertension	68
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	48
Depression	24
Chronic Kidney Disease	48
Asthma	19
Osteoperosis	12
Atrial Fibrilation	16
Heart Failure	30
Chronic Obstructive Pulmonary Disease	18
Diabetes	44
Dementia	0
Cancer	13

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Ryotaro Nakamura, MD treated as an oncologist in DUARTE, CA during 2017 were hospital care and inpatient care.

Volume of procedures performed by Dr. Ryotaro Nakamura, MD for Medicare patients.

doctor visit	434
hospital care	347
inpatient care	347

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryotaro Nakamura, MD.

**Gender**
Male	98
Female	80

**Ethnicity**
Non-Hispanic White	113
Black	0
Hispanic	28
Asian	20
Other	0
Native American	0

**Age**
From 65 to 74	96
From 75 to 84	43
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ryotaro Nakamura, MD in 2017

Hypertension	62
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	35
Depression	24
Chronic Kidney Disease	48
Asthma	7
Osteoperosis	9
Atrial Fibrilation	15
Heart Failure	24
Chronic Obstructive Pulmonary Disease	18
Diabetes	35
Dementia	9
Cancer	15

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Ryotaro Nakamura, MD treated as an oncologist in DUARTE, CA during 2018 were hospital care and inpatient care.

Volume of procedures performed by Dr. Ryotaro Nakamura, MD for Medicare patients.

doctor visit	424
hospital care	372
inpatient care	372

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryotaro Nakamura, MD.

**Gender**
Male	87
Female	73

**Ethnicity**
Non-Hispanic White	89
Black	0
Hispanic	31
Asian	28
Other	0
Native American	0

**Age**
From 65 to 74	79
From 75 to 84	44
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ryotaro Nakamura, MD in 2018

Hypertension	69
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	34
Depression	24
Chronic Kidney Disease	53
Asthma	0
Osteoperosis	13
Atrial Fibrilation	13
Heart Failure	32
Chronic Obstructive Pulmonary Disease	17
Diabetes	43
Dementia	9
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Ryotaro Nakamura, MD treated as an oncologist in DUARTE, CA during 2019 were hospital care and inpatient care.

Volume of procedures performed by Dr. Ryotaro Nakamura, MD for Medicare patients.

doctor visit	440
hospital care	616
inpatient care	616

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryotaro Nakamura, MD.

**Gender**
Male	104
Female	71

**Ethnicity**
Non-Hispanic White	100
Black	0
Hispanic	33
Asian	25
Other	0
Native American	0

**Age**
From 65 to 74	85
From 75 to 84	0
85 and over	0
Less than 65	44

Conditions of Medicare patients treated by Dr. Ryotaro Nakamura, MD in 2019

Hypertension	69
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	42
Depression	26
Chronic Kidney Disease	54
Asthma	10
Osteoperosis	10
Atrial Fibrilation	14
Heart Failure	27
Chronic Obstructive Pulmonary Disease	14
Diabetes	34
Dementia	9
Cancer	10

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Ryotaro Nakamura, MD treated as an oncologist in DUARTE, CA during 2020 were hospital care and inpatient care.

Volume of procedures performed by Dr. Ryotaro Nakamura, MD for Medicare patients.

doctor visit	367
hospital care	327
inpatient care	327

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryotaro Nakamura, MD.

**Gender**
Male	74
Female	57

**Ethnicity**
Non-Hispanic White	74
Black	0
Hispanic	0
Asian	24
Other	0
Native American	0

**Age**
From 65 to 74	70
From 75 to 84	36
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ryotaro Nakamura, MD in 2020

Hypertension	69
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	44
Depression	24
Chronic Kidney Disease	51
Asthma	0
Osteoperosis	11
Atrial Fibrilation	13
Heart Failure	24
Chronic Obstructive Pulmonary Disease	13
Diabetes	36
Dementia	14
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Ryotaro Nakamura, MD treated as an oncologist in DUARTE, CA during 2021 were hospital care and inpatient care.

Volume of procedures performed by Dr. Ryotaro Nakamura, MD for Medicare patients.

doctor visit	547
hospital care	215
inpatient care	215

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryotaro Nakamura, MD.

**Gender**
Male	90
Female	50

**Ethnicity**
Non-Hispanic White	86
Black	0
Hispanic	17
Asian	25
Other	0
Native American	0

**Age**
From 65 to 74	73
From 75 to 84	46
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ryotaro Nakamura, MD in 2021

Hypertension	65
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	41
Depression	21
Chronic Kidney Disease	56
Asthma	8
Osteoperosis	14
Atrial Fibrilation	10
Heart Failure	29
Chronic Obstructive Pulmonary Disease	19
Diabetes	38
Dementia	9
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Ryotaro Nakamura, MD treated as an oncologist in DUARTE, CA during 2022 were hospital care and inpatient care.

Volume of procedures performed by Dr. Ryotaro Nakamura, MD for Medicare patients.

doctor visit	460
hospital care	271
inpatient care	271

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryotaro Nakamura, MD.

**Gender**
Male	97
Female	59

**Ethnicity**
Non-Hispanic White	90
Black	0
Hispanic	23
Asian	29
Other	0
Native American	0

**Age**
From 65 to 74	82
From 75 to 84	52
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ryotaro Nakamura, MD in 2022

Hypertension	70
High Cholesterol	68
Stroke	13
Ischemic Heart Disease	32
Depression	17
Chronic Kidney Disease	31
Asthma	9
Osteoperosis	15
Atrial Fibrilation	24
Heart Failure	18
Chronic Obstructive Pulmonary Disease	20
Diabetes	38
Dementia	8
Cancer	12

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Ryotaro Nakamura, MD treated as an oncologist in DUARTE, CA during 2023 were hospital care and inpatient care.

Volume of procedures performed by Dr. Ryotaro Nakamura, MD for Medicare patients.

doctor visit	463
hospital care	227
inpatient care	227

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryotaro Nakamura, MD.

**Gender**
Male	90
Female	61

**Ethnicity**
Non-Hispanic White	87
Black	0
Hispanic	24
Asian	21
Other	0
Native American	0

**Age**
From 65 to 74	71
From 75 to 84	57
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ryotaro Nakamura, MD in 2023

Hypertension	74
High Cholesterol	74
Stroke	12
Ischemic Heart Disease	34
Depression	24
Chronic Kidney Disease	32
Asthma	11
Osteoperosis	16
Atrial Fibrilation	25
Heart Failure	24
Chronic Obstructive Pulmonary Disease	22
Diabetes	35
Dementia	9
Cancer	18

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Ryotaro Nakamura, MD treated as an oncologist in DUARTE, CA during 2024 were hospital care and inpatient care.

Volume of procedures performed by Dr. Ryotaro Nakamura, MD for Medicare patients.

doctor visit	525
hospital care	234
inpatient care	234

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Ryotaro Nakamura, MD.

**Gender**
Male	91
Female	69

**Ethnicity**
Non-Hispanic White	88
Black	0
Hispanic	31
Asian	29
Other	0
Native American	0

**Age**
From 65 to 74	70
From 75 to 84	59
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ryotaro Nakamura, MD in 2024

Hypertension	74
High Cholesterol	70
Stroke	14
Ischemic Heart Disease	36
Depression	23
Chronic Kidney Disease	31
Asthma	12
Osteoperosis	18
Atrial Fibrilation	22
Heart Failure	16
Chronic Obstructive Pulmonary Disease	22
Diabetes	37
Dementia	9
Cancer	17

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Ryotaro Nakamura, MD for Medicare patients.

The highest averages for the top procedures that Dr. Ryotaro Nakamura, MD treated as an oncologist in DUARTE, CA were hospital care and inpatient care.

doctor visit	442
hospital care	336
inpatient care	336

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Ryotaro Nakamura, MD.

**Gender**
Female	66
Male	89

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	20
Non-Hispanic White	90
Native American / Alaskan Native	0
Hispanic	27
Other	0

**Age**
85 and over	0
75 to 84	33
Less than 65	10
65 to 74	79

Average of Total of Conditions of Medicare patients treated by Dr. Ryotaro Nakamura, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Ryotaro Nakamura, MD treated were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	63
High Cholesterol	54
Stroke	4
Ischemic Heart Disease	36
Depression	21
Chronic Kidney Disease	39
Asthma	8
Osteoporosis	12
Heart Failure	22
Chronic Obstructive Pulmonary Disease	16
Diabetes	34
Atrial Fibrillation	13
Dementia	6
Cancer	11

Education & Training

He has a state license in California.

Licensed In: California

Affiliations & Hospitals

Dr. Ryotaro Nakamura, MD is associated with these hospitals and organizations:

City of Hope

Ratings & Reviews

Dr. Ryotaro Nakamura, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 2 ratings. We collect ratings and reviews of Dr. Ryotaro Nakamura, MD from all over the web to help you find the right in DUARTE, CA.

Overall Rating

(2 Ratings)

Leave a Review

Reviews From Around The Web

Overall Rating: 5.0 2026-04-22

Patient verified via Press Ganey

Dr. Nakamura is an outstanding physician who has consistently provided me with the very best of care and treatment. He Is a Fantastic Doctor who represents everything that's right in patient care at COH.

Overall Rating: 5.0 2026-04-05

Patient verified via Press Ganey

Dr Nakamura is very thorough and caring doctor. Feel blessed to be under his care. He gave me a second life

General Payments

These charts describe general payments received by Dr. Ryotaro Nakamura, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Merck Sharp & Dohme Corporation	$7,481 $7,481
Amgen Inc.	$4,912 XGEVA $5	$4,907
Seattle Genetics, Inc.	$2,082 ADCETRIS $2,082
National Marrow Donor Program	$1,947 $1,947
Omeros Corporation	$1,605 $1,605
Other	$4,437 ATGAM $1,200	ULTOMIRIS $189	VELCADE $110	Fabhalta $55	ZYTIGA $52	Other $2,831

**Types of Payments**
Consulting Fee	$12,742
Travel and Lodging	$2,793
Food and Beverage	$2,729
Honoraria	$2,000
Education	$1,107
Other	$1,094

Research Payments

Dr. Ryotaro Nakamura, MD has received 17 research payments totaling $144,276.

Biography

Dr. Ryotaro Nakamura is a physician who specializes in adult hematology and adult oncology. He has received the following distinction: Southern California Super Doctors. Dr. Nakamura is professionally affiliated with City of Hope. Doctor.com reports that he is accepting new patients at his office in DUARTE, CA.